Rail sit-prevention unit

Information

  • Patent Grant
  • D683470
  • Patent Number
    D683,470
  • Date Filed
    Wednesday, December 21, 2011
    14 years ago
  • Date Issued
    Tuesday, May 28, 2013
    13 years ago
Abstract
Description


FIG. 1 is a perspective view of a rail sit-prevention unit.



FIG. 2 is a front view thereof.



FIG. 3 is a rear view thereof.



FIG. 4 is a side view thereof; and,



FIG. 5 is a top view thereof.


The broken lines showing environmental structural is for illustrative purposes only and form no part of the claim.


Claims
  • We claim the ornamental design for a rail sit-prevention unit, as shown and described.
US Referenced Citations (4)
Number Name Date Kind
3972510 Dougherty Aug 1976 A
4103875 Glass Aug 1978 A
4269008 Assouline May 1981 A
D642654 Paulin Aug 2011 S
Continuation in Parts (1)
Number Date Country
Parent 13079803 Apr 2011 US
Child 29409299 US